Question 909126
A shipment of 21 computer keyboards and 33 monitors cost $35564.25. Another shipment of 41 keyboards and 36 monitors cost $49503.08. Find the cost of each keyboard and each monitor.

x - cost of each keyboard
y - cost of each monitor 

{{{21x+33y=35564.25}}}
{{{41x+36y=49503.08}}}

Subtitution:
{{{y= ((35564.25)-21x)/33}}}

{{{41x+36(((35564.25)-21x)/33)=49503.08}}}
{{{x=591.773}}}
{{{y=((35564.25)-21(591.773))/33}}}
{{{y=701.122}}}